Well-pulley.



Patented Mar. 20, I900.

J. FOSTER.

WELL PULLEY.

(Application filed June 3, 1899.)

(No Model.)

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L STATES JAMES FOSTER, or GOBER, TEXAS.

WELL-PULLEY.

SPECIFICATION forming part of Letters Patent No. 645,798, dated March20, 1900.

Application filed June 3, 1899- Serial No; 719,241. (No model.)

To all whom it 777/601] concern.-

Be it known that I, JAMES FOSTER, of Gober, in the county of Fannin andState of Texas, have invented a new and Improved Well-Pulley, of whichthe following is a full, clear, and exact description.

One object of my invention is to so construct a well-pulley that it'maybe readily placed in position above the well-curb by any person ofordinary intelligence.

A further object of the invention is to provide a means whereby the ropeor chain oarrying the bucket maybe automatically controlled in a mannertoinsure said rope or chain being guided to and upon the pulley inraising and lowering the bucket, thus preventing the hoisting rope orchain coming in contact with the mud and water that usually accumulatearound a well-curb.

Another object of the invention is to provide for the guide device beingoperated through the medium of ahand rope or chain or by contact withthe pulley itself.

The invention consists in the novel con struction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be hadto the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective View of a wellcurb and the improved deviceapplied thereto. Fig. 2 is a side elevation of the device, parts beingbroken away, the device being drawn on a larger scale than that shown inFig. 1; and Fig. 3 is an end view of the device, parts being brokenaway.

The frame A of the pulley or drum comprises an upper member 10, havinghangers 11 attached thereto, and down wardly-extending members 12, eachdownwardly-extending member of the frame being provided at or near itscenter with a longitudinal slot 13, as illustrated in Fig. 3. The slots13 permit the drum or pulley B to move to and from a guideperipherally-grooved head is adapted to receive an endless rope A,(shown broken away in Fig. 2,) by means of which the pulley or drum B isrotated. If desired, an endless chain may be substituted for the rope A,in which event the head 16 instead of being peripheral] y grooved willbe provided with peripheral teeth or spurs. A shaft 17 is utilized tosupport the pulley B in the frame, the shaft 17 being carried at its endportions through the slots 13 in the pendent members of the frame, andbetween the heads of the pulley or drum B and the pendent members of theframe washers 18 are usually placed on the shaft 17, and said shaft maybe threaded at both ends to receive nuts 19, or one end of the shaft mayhave a head integrally formed thereon, if desired.

A transverse guide-arm 20 is attached to "the pendent member of theframe A that is opposite the driving-head 16 of the pulley or N drum B,and the ends of the guide-arm 20 are bent inwardly at an angle to thebody, so as to cross the groove in the driving-head partially orentirely, as illustrated in Fig. 2. These inner extensions 21 of theguide-arm 20 are adapted to prevent the hand rope or chain from slippingoff the driving-head. A feedscrew 23 is mounted to revolve in the lowerend portions of the pendent members 12 of the frame A, as shownparticularly in Fig. 32, and a driving-wheel 211s secured upon thefeed-screw 23, the driving-wheel 24 occupying such position that itsperipheral surface, which is usually roughened, will face the peripheryof the driving-head 16 of the pulley B, and said pulley B, by reason ofits mounting, will gravitate downward, and its head 16 will engage withsaid wheel 24. The said drivingwheel will thus be revolved by themovement of the pulley or drum B, and rotary movement will inconsequence be imparted to the feed-screw 23.

The feed-screw 23 is adapted to carrya directing-arm O, the body ofwhich is curved correspondingly to the curvature of the body of thepulley and is necessarily below said pulley. The body of thedirecting-arm is provided with an opening at its center, threaded toreceive the feed-screw 23, so that as the said feed screw or shaft 23 isturned the directing-arm will travel in direction of one or p the otherend of said feed-screw. The forward end of the directing-arm 0 extendsupwardly in front of the pulley or drum and terminates in an eye 26,while the other end of the directing-arm O is carried upward at the rearof the pulley and is curved rearwardly to form a finger 27. Byengagement with the drum this finger is adapted to hold the eye 26 ofthe directing-arm O in proper position, while the rope 28 isfrictionally engaged with the inner wall of the eye 26 of saiddirecting-arm, since in the absence of the finger 27 the eye of thedirecting-arm would be drawn so far downward by the action of the rope28 as to cause the eye 26 to bind or clamp the rope and interfereseriously with its freedom of motion. The hoisting or bucket-carryingrope or chain 28 is secured at one of its ends to the outer face of thebody of the pulley or drum B, adjacent to the head 15 of said drum, asshown in Fig. 2, and the other end of the bucket carrying or hoistingrope is passed through the eye 26 of the directing-arm.

The application of the drum or pulley is shown in Fig. 1, in which itwill be observed that a frame D extends above the well-curb E, and thehangers 11 of the pulley-frame are made to engage with eyes orequivalent devices attached to the upper portion of the said frame. Awell-bucket F is secured in any suitable or improved manner to the lowerend of the hoisting-rope 28. In operation whether the bucket is beingraised or lowered the shaft 23 will be revolved, and the direct-'ing-arm 11 will travel upon said shaft in such manner that its forwardand rear extremities will direct or guide the rope as it winds upon orunwinds from the drum, thus preventing displacement of the hoisting ropeor chain.

I desire it to be understood that the drum B may be turned by a crankattached to the shaft 17, if desired.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. The combination, with a winding-drum ment with thedriving-wheel of the feed-' screw.

2. The combination, with a frame, a pulley mounted to revolve in theframe, the pulley being adapted to have vertical movement as well asrotary movementin the frame, a guidearm for the pulley carried by theframe, and means, substantially as described, for imparting rotarymotion to the pulley, of a feed= shaft carried by the frame and locatedbelow the pulley, the feed-shaft being exteriorly threaded, adirecting-arm held to travel upon the threaded feed-shaft, adriving-wheel secured to the feed-shaft, and driven through the mediumof the driving mechanism for the pulley, the directing-arm beingarranged to extend upward at opposite sides of the pulley and arrangedfor engagement at its upper ends with a hoist-rope carried by thepulley, as and for the purpose specified.

3. The combination, with a frame comprising an upper member providedwith hangers, pendent members having longitudinal slots therein, adrum-pulley the trunnions whereof extend into the longitudinal slots ofthe said frame, said drum-pulley being provided with a driving-head, ahand-rope engaging with the driving-head of the pulley, a threadedfeed-shaft located below the pulley, a driving-wheel secured to saidshaft and arranged for engagement with the hand-rope, and a directingarm mounted to travel upon said shaft, the ends of the said armextending upward at each side of the pulley, one end of thedirecting-arm being provided with an eye to receive the hoist-ropeadapted to be carried by said pulley, for the purpose specified.

JAMES FOSTER. Witnesses:

JAMES GoooH, N.- O. COVINGTON.

